Detachable heel



Dec. 24, 1929. c, FARRAR 1,740,976

DETACHABLE HEEL Filed March 50. 1927 2 Sheets-Sheet 1 1 X1 149- 15 1a 3'5 -30 I Z v j j 18 7 X0 8 16 i9 13 Z] 15 16 18 X0 17171671107 W Q9 Dec.24, 1929. -A. CIFARRAR DETAGHABLE HEEL Filed March 30, 1927 2Sheets-Sheet 2 $54 44 a'ti'o 7763 Patented Eee. 24, 1929 i ALLAN C.FARRAR, OF WHITMAN, IIIASSACHUSETTS DETACI-IABLE HEEL Application filedMarch 30, 1927. Serial No. 179,463.

My present invention relates to an improvement in the art of boot andshoe manufacture, and also in the art of rubber heel manufac ture, inthe art of attaching a rubber heel 5 to a shoe, and includes as animproved article of manufacture the rubber heel, the attachmentsutilized, and the resulting boot or shoe.

It is at present customary to mold rubber heels for attachment to bootsor shoes with a plurality of metal or fibre plates embedded in therubber, which are perforated and correspond with perforations entirelythrough the outer or tread surface of the rubber heel to facilitate theapplication and driving of heel attaching nails through the openperforations, through the washers, and into the heel seat of a shoe,which nails are clinched against a plate in the bottom of the heelportion of the last on which the shoe is built.

My present invention contemplates the means and a method by which anentirely novel form of rubber heel can be made and utilized.

My present invention utilizes a rubber heel with a continuous smoothsolid tread surface no openings bein formed therein, and no attachingnails being driven therethrough, and hence presenting the highlyadvantageous features of having a complete solid surfaced tread or toplift on the rubber heel itself. This novel feature of construction is ofgreat importance as it insures more even wearing, prevents admission ofwater, dust, mud, etc., through the nail receiving openings in the oldstyle rubber heels, and furthermore tends to more uniform wear,serviceability, and increased resiliency throughout the heel. I believethat my invention which utilizes a solid tread surface for rubber heelsis a distinct novelty in this art and therefore I wish to claim the sameasa-n important and improved article of manufacture broadly. V

A further feature of novelty and great importance is the fact that I somanufacture my improved and solid surfaced rubber heel with asubstantially continuous nail retaining plate instead of the former oldstyle separate washers, Such a plate embedded in the rubber during theheel molding process is preferably perforated at predetermined pointsfastening means.

to receive cooperating interlocking Such a plate can be, and preferablyis, of metal, of any suitable tlnckness and strength, or may be of metalmesh or, in fact, may be of thin permeable metal through which the fasdriven to interlock. l1ze a hard la toning means may be Furthermore Imay ut1- yer of fibre, the important feature being that this layerinterlocks and cooperates with the fastenin forms the further imporgeous functions of stren heel,

g devices, and pertant and advantagthening the rubber equalizing thecompressibility, load carrying, resiliency and wear. An importantfeature, therefore, in my present novel rubbroadly.

A further very novel ture in that of I believ art and Another novelty wpresent taching This no special sharp and clinchin ed to be driven intwhether through through the sole, clinching plate, cially formed tobedded mined and nail retaining material form tli iorm of rubber firstsecured to a heel seat of attaching the heel f substantial plate ddedwithin the n es the attaching ed, but also wear and use I wish to claimthis feature and important feathe rubber heel art, and the attachment ofthe same to a shoe, consists in the fact that I attach my novel andimproved heel by fastening devices the shoe, thus rom the surfaceopposite the outer tread surface or top lift.

e that this is a distinct novelty in this Iclaim the same hereinbroadly.

hich is a feature of the invention consists inthe form of atmeans whichI preferably employ. velty attaching device is preferably a form of heelnail having relatively insole, and

g points on one end adapto the heel seat of the shoe, a heel base ordirectly against the and with the other end speinterlock with the plateemin the heel, whether this plate is wire mesh, metal, or fibre withrecesses at predeterpo1nts-as preferred-01 permeable e interlocking endof Preferably I novel type of heel nail as a somewhat spear-like form,and preferably, also, this form is flat. Thus, when the heel nail isutilized to interlock through recesses, which'may be in the form ofoblong openings in the plate, such nails can be readily removed, ifdesired, by a partial rotation of-the same so that the flat sides willermit the withdrawal of the spear head from the interlocking openings inthe plate. This nail can also be readily handled by reason of the fiatsides of the spear-like head, and preferably will be so set as to bedriven through the elongated openings to spring through and by and thenhave the shoulders of the spear head catch and interlock with theopposite sides of the plate from which the spear head is driven. Suchinterlocking forms or nails I believe to be also distinctly novel, and Iclaim the same herein broadly.

My novel form of solid tread surfaced rub-.

ber heel prepared for attachment by the nails driven from the top orheel seat side involve a new and novel method of attaching. Briefly,this method consists in first driving the heel nails into the heel seat,or through the heel bases and heel seat,clinching the same against theplate on the heel end of the last, driving the same a predetermineddistance only, and then permitting the spear ends to stand out from theheel seat-or heel baseapproximately the same distance which the heelnail retaining plate is embedded within the adjacent surface of therubber heel. Thereupon the rubber heel is applied to the heel seat ofthe shoe, holes being preferably positioned and the recesses in the heelplate being positioned to register with the upstanding arrow headportions of the nails, which nails have also been driven substantiallyin predetermined position to register with the openings and platerecesses in the rubber heel to be applied. A slight pressure on therubber heel, when it is applied and fitted, will thus spring the platedown and over the arrow heads, which latter spring through the oblong orother recesses, and at once interlock with the shoulders on the spearheads. Thus, my device, is a distinctly new and improved process and Iwish to claim the same broadly herein.

My various inventions thus enable me to produce a distinctly new andimproved boot or shoe structure with the solid tread surfaced rubberheel, and I desire to claim such completed shoe structure as an articleof manufacture, and as a most important resultant and part of myinvention.

While I may form my rubber heel .in any suitable and desired mold,provided with a plate embedded therein, I have designed a particulartype of mold and heel, and I have also designed a preferred form of heelplate, both of which are novel and important and are claimed herein."

Further improvements, novelties, and imin cross section illustratingtheclinching of the heel attaching nails;

Fig. 3 is a plan View of a novel form of rubber heel;

Fig. is a cross sectional view on the line 4-4 of Fig. 8.

Fig. 5is a plan view of my preferred form of interlocking plate embeddedin a heel;

Fig. 6 is an enlarged perspective view of a preferred form of heelnailing means;

Fig. 7 is a fragmentary view, partly in I cross section, illustratingthe method of driving the type of nail shown in Fig. 6 to spring thesame through the recesses in the attaching plate;

Fig. 8 illustrates a completed interlocking action of the nail andplate.

Fig. 9 is an enlarged view, partly in cross section, showing theapplication for attachmentof my novel form of rubber heel to the shoe;

Fig. 10 illustrates a complete action of heel attaching; and

Fig. 11 illustrates a typical heel attachment to a shoe having a heelbase previously attached to the heel seat.

As shown in the drawings, a shoe 1 having an outsole 2 may be of anysuitable size, style or design. To such a shoe I attach my solidsurfaced tread rubber heel, here shown as a solid heel of full heightfrom outsole to the ground without interposition of a heel base, whichheel is indicated generally at 3. This rubber heel is preferably moldedof special contour, preferably with a rand-like rim indicated at 5around the surface which will fit snugly and tightly around the shoe,and with a central bearing portion 10 and a circular depression 11. Thisis the form I prefer, where a solid rubber heel is desired without aheel base, although this form can be utilized with the heel base, butpreferably where a heel base is attached or is employed the base 36 hasthe rand-like rim and accordingly the rim 5 is not needed. Strengtheningwebs or ribs 12 may also be formed as shown in Fig. 3. In molding thisheel I apply my novel type of locking plate 15. This plate, asexplained, may be of metal, fibre, wire mesh, or otherwise, butpreferably is formed of thin metal and with a central opening 16, andwith a plurality of elongated recesses 18, these recesses being ofproper width for that of the fiat sided arrow head portion of the heelattaching nailsto facilitate withdrawal of same when turned to registertherewith, but to insure interlocking with the shoulders 19 of the arrowhead 20 of the heel attaching nail 21 as shown in Figs. 6, 7, and 8. Theflat side of the heads 22 is more clear 1y illustrated in the centralnail as shown in Fig. 9. This plate 15 is embedded in the heel platesubstantially as shown, and with guiding recesses 25 adapted to registertherewith.

With my novel form of rubber heel thus prepared, it will be noted thatthe tread surface is imperforate and solid, thus pro viding theadvantageous features of solid wear resisting, even resiliency withoutdanger of tracking in mud or permitting access of water, dirt, dust, orthe like. It has long been desired to have such a smooth, solid treadsurface on a rubber heel, but never before my invention, so far as I aminformed, has it been possible or practical to attach such a smoothtread surfaced rubber heel to a shoe without driving the heel attachingnails from the bottom of the heel. This important novelty I haveaccomplished, and the same will be now explained.

Vihen the shoe 1 is lasted on a last 35, (see Fig. 2) with the outsole 2and insole 4, the clinching plate at the heel portion, as shown at 31,is ready to receive and clinch the sharp or pointed end opposite to thearrow heads 20 of my novel form of heel nails. These nails are thendriven into the heel portion of the shoe, as shown in Fig. 2, or intothe heel portion through the heel base 36, as shown in Fig. 11, for apredetermined distance, the nails being flattened on opposite sides andclinched against the heel plate 31, and protruding from the sole to, asshown in Fig. 2, or from the heel base 86, as shown in Fig. 11, asubstantially predetermined distance. Thereupon the heel mold is appliedwith the projecting nails 21 fitted to register in the correspondingopenings 25 leading to the re cesses 18 in the plate 15, and pressureapplied through a press 40 or otherwise to spring or force the heeldownwardly until the interlocking shoulders of the heads 20 of my novelform or" nails spring through the recesses 18 and lock on the oppositesides, as clearly shown in Figs. 8 and 10. The pressure is then re easedand the heel is thus secured and the shoe completed.

In the form shown in Fig. 11 my novel form of rubber heel 4 1 may be ofless thick ness than the solid or all rubber heel 3 is molded with theheel plate as just described, and is applied and attached to the heelattaching nails 20 in the same manner.

It will thus be seen that I have devised a novel and improved heelstructure, heel plate, heel nail, interlocking attaching arrangement,design, and form of rubber heel, method of making same with the novelplate embedded therein, method of heel attaching, and improved method ofshoe making resulting at these various steps in new articles ofmanufacture comprising a novel form of rubber heel plate, rubber heel,nails, heel seat nailing, and rubber heel attaching, as well as theprocess of manufacturing boots and shoes.

Having thus described my invention, what I claim as new is:

An improved attachable outer heel member of elastic material having alayer of resilient material of greater strength than the outer heel,said layer of resilient material being embedded in and completelysurrounded by the outer heel member, said layer of resilient materialbeing provided with a series of recesses, positioned and adapted tointerlock with heel a taching means, the heel seat containing surface ofthe outer heel having a central bearing portion, a rand-like rim, adepression between said central portion and rim, and strengthening ribsextending across the depression between the central bearing portion andthe rand-like rim, the tread contacting surface of said heel beingimperforate.

In testimony whereof, I have signed my name to this specification.

ALLAN C. FARRAR.

